EP2865933B1 - Method for installing a thermal protection liner - Google Patents

Method for installing a thermal protection liner Download PDF

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Publication number
EP2865933B1
EP2865933B1 EP14186710.1A EP14186710A EP2865933B1 EP 2865933 B1 EP2865933 B1 EP 2865933B1 EP 14186710 A EP14186710 A EP 14186710A EP 2865933 B1 EP2865933 B1 EP 2865933B1
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EP
European Patent Office
Prior art keywords
face
thermal protection
heat conducting
protection lining
conducting member
Prior art date
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EP14186710.1A
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German (de)
French (fr)
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EP2865933A1 (en
Inventor
Michel Decroix
Simon Berrini
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Soletanche Freyssinet SA
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Soletanche Freyssinet SA
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Priority claimed from FR1360445A external-priority patent/FR3010480B1/en
Application filed by Soletanche Freyssinet SA filed Critical Soletanche Freyssinet SA
Publication of EP2865933A1 publication Critical patent/EP2865933A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/04—Sealing to form a firebreak device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/145—Arrangements for the insulation of pipes or pipe systems providing fire-resistance
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

Definitions

  • the present invention relates to the thermal protection of industrial installations.
  • the nuclear industry is a particularly concerned industry, but it is not the only one.
  • the method according to the invention relates to thermal protection around heat-conducting members, for example metal pipes, extending in contiguous spaces separated by one or more walls. There may be an abnormal rise in temperature in one of these spaces, caused for example by a fire.
  • the purpose of the thermal protection in question here is to limit the propagation of the temperature rise in an adjoining space separated by a wall, even though one or more heat conducting members, for example metal pipes pass through this wall.
  • the safety requirements to take into account this type of risk are typically that in case of temperature rise up to a given value (representative for example of a fire scenario) in the first space, the temperature remains lower. at a determined threshold in the second space after a determined time, or that the temperature of the accessible portion in the second space of the conductive element remains below a determined threshold after a predetermined time.
  • US 5,079,292 describes a firewall protecting electrical cables against heat emissions from a fire in the room where these cables are located.
  • the firewall completely wraps the cables and includes several layers sewn together.
  • EP 1 449 764 discloses a passive insulation coating for covering the interior of the walls of an aircraft.
  • US 2013/095275 describes a method of laying a thermal protection coating on a pipe passing through a wall.
  • the present invention aims to address these security requirements more satisfactorily.
  • the invention proposes a method of laying a thermal protection lining as defined in claim 1.
  • the thermal protection liner can be of simple design and reduced size.
  • a significant advantage of the method is that the length of the conductive member that needs to be covered with the liner at the exit of the wall can be reduced, in any case much lower than if the seal was simply insulating, at a comparable level of protection.
  • the thickness of the filling may also be limited. Space saving is very valuable in confined environments.
  • the first and second faces of the thermal protection liner form a pocket.
  • the thermal insulation can then be housed in this pocket.
  • the structure of the thermal protection lining is organized to be prefabricated, thus allowing operators to pause more easily and more quickly on the heat conducting member.
  • the second face advantageously comprises a first portion forming, with the first face, the pocket and a second portion that can form a flap.
  • the method may then comprise, during the assembly step, the bonding of the flap to a portion of the first portion of the second face.
  • the thermal protection lining is substantially flat in shape before assembly, thus facilitating its packaging and transport.
  • the method comprises, during the assembly step, the application of the adhesive on the assembly of the first permeable face of the thermal protection lining.
  • Glue may also be applied to a portion of the heat conducting member during the assembly step.
  • the first face of the thermal protection liner comprises honeycomb fabric. This fabric allows uniform gluing and the diffusion of the glue and / or the water it releases towards the insulation.
  • an insulating joint may be provided between the heat conducting member and the thermal protection lining and / or between the wall and said thermal protection lining.
  • the role of the thermal protection proposed here is to limit, or to delay, the propagation of the temperature rise in an adjacent space 4 separated by a wall 2, while even one or more heat-conducting members 1, for example metal pipes, pass through this wall 2.
  • a thermal protection lining 5 is assembled on each of the heat-conducting members 1, in order to isolate and absorb part of the heat coming from this member 1.
  • the heat conducting member 1 is, in the nonlimiting example illustrated on the figures 1 and 2 , a metal pipe of annular section.
  • the figure 1 the lining 5 is assembled on a portion of the heat conducting member 1 connecting the spaces 3 and 4.
  • the lining 5 is in contact with the wall 2.
  • the wall 2 can be a partition, a floor, a ceiling or any other wall separating two distinct spaces.
  • the liner 5 shown in perspective on the figure 3 before its assembly on a portion of the pipe 1, comprises a first face 6, a second face 7 and a thermal insulator 8.
  • the liner 5 has, in this example, a generally parallelepiped shape. This substantially flat shape before assembly allows it to be easily stored flat.
  • the first face 6 is flexible and permeable. It may advantageously be composed of fabric and more particularly of honeycomb fabric. She has a surface S1 of general shape, for example, substantially rectangular.
  • the second face 7 is flexible and impervious and is, for example composed of a coated fabric. It has a surface S2 larger than S1 and generally rectangular shape. The first and second faces 6 and 7 are located opposite each other.
  • the thermal insulation 8 is located between the first and second faces 6 and 7. It is adapted to allow good thermal insulation by reducing the radial heat leaks from the pipe 1.
  • the insulation 8 is, for example, composed of mineral wool, cellulose wadding or any other material with low thermal conductivity. It has, for example, a general shape of parallelepiped rectangle of thickness e.
  • the first face 6 and the second face 7 of the liner 5 are secured to one another, for example by sewing at least a portion of the edges of the first face 6 on the second face 7 or vice versa. Alternatively, at least one of the edges 6 'and 7' of the first and second faces 6 and 7 is free.
  • the first and second faces 6 and 7 thus form a pocket 9 in which the insulator 8 is slid.
  • the surface S2 comprises a flexible portion that does not face the surface S1 and that folds to form a flap 10.
  • the flap 10 is adapted to improve the maintenance of the lining 5 around the pipe 1.
  • the surface S2 is decomposed between a first portion S2 'and a second portion S2 "The first portion S2' forms, with the surface S1, the pocket 9 housing the insulator 8.
  • the second portion S2" form the flap 10.
  • the insulator 8 After insertion of the insulator 8 in the pocket 9, the insulator 8 is covered on a first face 11 and on a first edge 12 by the first permeable face 6.
  • the face 11 and the edge 12 are intended to be oriented towards the inside, that is to say respectively towards the pipe 1 and towards the wall 2.
  • the insulator 8 is covered on a second face 13 and on a second song 14 by the second waterproof face 7, the face 13 and the song 14 being intended to be outward facing.
  • the packing 5 can be prefabricated in advance at the factory and be adapted to the dimensions of the pipe to be fitted 1.
  • the lining 5 is secured to the wall 2 and to a portion of the pipe 1 by gluing.
  • the bonding is performed using an adhesive comprising active elements capable of releasing water during a rise in temperature. This results in an endothermic process when the temperature rises.
  • the water remains bound by the active elements of the glue.
  • the water is released at about 80 ° C, for example. As the temperature reaches 100 ° C, the released water is vaporized, absorbing part of the heat from space 3.
  • a refractory glue of the kind described in French Patent No. 2,701,850 is well suited to this application, without this being limiting.
  • the operator spreads, preferably uniformly, glue on the whole of the first face 6.
  • the composition of the first face 6, honeycomb fabric allows a uniform and easy gluing using, for example, a spatula or a brush.
  • the first face 6 makes it possible to apply the glue without damaging the insulation 8 and allows the glue to migrate into the insulation 8.
  • the first face 6, permeable, is oriented inward so as to allow heat exchange between the pipe 1 and the liner 5.
  • the impermeability of the second face 7 also makes it possible to prevent the water released by the glue in the event of abnormal elevation of the temperature escapes before being sprayed.
  • the operator closes the lining 5 around the pipe 1 by joining the flap 10 to the lining 5.
  • the flap 10 is, for example, glued to the second face 7 with a flexible glue such as as a putty adhesive based on silicone resin.
  • the flap 10 further allows to close the liner 5 without generating additional waste or dust.
  • the operator makes a first seal (not shown) between the pipe 1 and the gasket 5 and a second seal 15 between the wall 2 and the gasket 5 so as to improve the insulation.
  • the sequence of steps of the method of laying the packing 5 described above allows to obtain a reduced exposure time, for example from four to seven minutes and preferably a break time of five minutes.

Description

La présente invention est relative à la protection thermique des installations industrielles. L'industrie nucléaire est un type d'industrie particulièrement concernée, mais ce n'est pas la seule.The present invention relates to the thermal protection of industrial installations. The nuclear industry is a particularly concerned industry, but it is not the only one.

Le procédé selon l'invention concerne la protection thermique autour d'organes conducteurs de la chaleur, par exemple des tuyaux métalliques, s'étendant dans des espaces contigus séparés par une ou plusieurs parois. Il peut se produire une élévation anormale de température dans l'un de ces espaces, provoquée par exemple par un incendie.The method according to the invention relates to thermal protection around heat-conducting members, for example metal pipes, extending in contiguous spaces separated by one or more walls. There may be an abnormal rise in temperature in one of these spaces, caused for example by a fire.

Le but de la protection thermique dont il est question ici est de limiter la propagation de l'élévation de température dans un espace contigu séparé par une paroi, alors même qu'un ou plusieurs organes conducteurs de chaleur, par exemple des tuyaux métalliques traversent cette paroi.The purpose of the thermal protection in question here is to limit the propagation of the temperature rise in an adjoining space separated by a wall, even though one or more heat conducting members, for example metal pipes pass through this wall.

Les exigences de sécurité pour prendre en compte ce type de risque sont typiquement qu'en cas d'élévation de température jusqu'à une valeur donnée (représentative par exemple d'un scénario d'incendie) dans le premier espace, la température reste inférieure à un seuil déterminé dans le second espace au bout d'un temps déterminé, ou encore que la température de la partie accessible dans le second espace de l'élément conducteur reste inférieure à un seuil déterminé au bout d'un temps déterminé.The safety requirements to take into account this type of risk are typically that in case of temperature rise up to a given value (representative for example of a fire scenario) in the first space, the temperature remains lower. at a determined threshold in the second space after a determined time, or that the temperature of the accessible portion in the second space of the conductive element remains below a determined threshold after a predetermined time.

Traditionnellement, on prend en compte une exigence de ce type en disposant autour de chaque organe conducteur une couverture thermiquement isolante. Celle-ci doit être relativement longue pour réduire la surface de tuyau rayonnant de la chaleur. Il en résulte un encombrement significatif de la garniture isolante. En outre, l'isolation thermique du tuyau, en limitant la propagation radiale de la chaleur, favorise sa propagation le long du tuyau. La protection thermique offerte est donc médiocre, la zone chaude radiante du tuyau étant simplement repoussée un peu plus loin de la cloison.Traditionally, a requirement of this type is taken into account by arranging a thermally insulating cover around each conductive member. This must be relatively long to reduce the surface of pipe radiating heat. This results in a significant size of the insulating lining. In addition, the thermal insulation of the pipe, by limiting the radial propagation of heat, promotes its propagation along the pipe. The thermal protection offered is therefore mediocre, the hot radiant zone of the pipe being simply pushed a little further from the partition.

US 5 079 292 décrit un pare-feu protégeant des câbles électriques vis-à-vis des émissions de chaleur dues à un incendie dans le local où se trouvent ces câbles. Le pare-feu enveloppe totalement les câbles et comprend plusieurs couches cousues ensemble. US 5,079,292 describes a firewall protecting electrical cables against heat emissions from a fire in the room where these cables are located. The firewall completely wraps the cables and includes several layers sewn together.

EP 1 449 764 décrit un revêtement d'isolation passive destiné à recouvrir l'intérieur des parois d'un avion. EP 1 449 764 discloses a passive insulation coating for covering the interior of the walls of an aircraft.

US 2013/095275 décrit un procédé de pose d'un revêtement de protection thermique sur un tuyau traversant une paroi. US 2013/095275 describes a method of laying a thermal protection coating on a pipe passing through a wall.

La présente invention vise à traiter ces exigences de sécurité de manière plus satisfaisante.The present invention aims to address these security requirements more satisfactorily.

À cet effet, l'invention propose un procédé de pose d'une garniture de protection thermique tel que défini dans la revendication 1.For this purpose, the invention proposes a method of laying a thermal protection lining as defined in claim 1.

Cette solution permet l'absorption d'une partie de la chaleur provenant de l'organe conducteur de chaleur. On ne compte plus seulement sur un élément isolant pour contrarier la propagation de la chaleur ; on fait en sorte qu'une partie de cette chaleur soit dissipée dans la garniture par la vaporisation de l'eau dégagée par la colle en cas d'élévation anormale de température. La garniture de protection thermique peut être de conception simple et d'encombrement réduit.This solution allows the absorption of a portion of the heat from the heat conducting member. There is no longer just an insulating element to thwart the spread of heat; some of this heat is dissipated in the packing by the vaporization of the water released by the glue in case of abnormal rise in temperature. The thermal protection liner can be of simple design and reduced size.

Un avantage significatif du procédé est que la longueur de l'organe conducteur qui a besoin d'être recouverte de la garniture à la sortie de la paroi peut être réduite, en tous cas beaucoup plus faible que si la garniture était simplement isolante, à un niveau de protection comparable. L'épaisseur de la garniture peut aussi être limitée. Le gain de place est très appréciable dans des environnements confinés.A significant advantage of the method is that the length of the conductive member that needs to be covered with the liner at the exit of the wall can be reduced, in any case much lower than if the seal was simply insulating, at a comparable level of protection. The thickness of the filling may also be limited. Space saving is very valuable in confined environments.

Dans un mode de réalisation, les première et deuxième faces de la garniture de protection thermique forment une poche. L'isolant thermique peut alors être logé dans cette poche. La structure de la garniture de protection thermique est organisée pouvoir être préfabriquée, permettant ainsi aux opérateurs d'effectuer sa pause plus facilement et plus rapidement sur l'organe conducteur de chaleur.In one embodiment, the first and second faces of the thermal protection liner form a pocket. The thermal insulation can then be housed in this pocket. The structure of the thermal protection lining is organized to be prefabricated, thus allowing operators to pause more easily and more quickly on the heat conducting member.

La deuxième face comprend avantageusement une première portion formant, avec la première face, la poche et une deuxième portion pouvant former un rabat. Le procédé peut alors comporter, au cours de l'étape d'assemblage, le collage du rabat sur une partie de la première portion de la deuxième face.The second face advantageously comprises a first portion forming, with the first face, the pocket and a second portion that can form a flap. The method may then comprise, during the assembly step, the bonding of the flap to a portion of the first portion of the second face.

Selon une réalisation, la garniture de protection thermique est de forme sensiblement plane avant son assemblage, facilitant ainsi son conditionnement et son transport.According to one embodiment, the thermal protection lining is substantially flat in shape before assembly, thus facilitating its packaging and transport.

Dans une réalisation avantageuse, le procédé comporte, au cours de l'étape d'assemblage, l'application de la colle sur l'ensemble de la première face perméable de la garniture de protection thermique. De la colle peut aussi être appliquée sur une portion de l'organe conducteur de chaleur au cours de l'étape d'assemblage.In an advantageous embodiment, the method comprises, during the assembly step, the application of the adhesive on the assembly of the first permeable face of the thermal protection lining. Glue may also be applied to a portion of the heat conducting member during the assembly step.

Dans une réalisation, la première face de la garniture de protection thermique comprend du tissu alvéolé. Ce tissu permet un encollage uniforme et la diffusion de la colle et/ou de l'eau qu'elle dégage vers l'isolant.In one embodiment, the first face of the thermal protection liner comprises honeycomb fabric. This fabric allows uniform gluing and the diffusion of the glue and / or the water it releases towards the insulation.

Pour améliorer l'isolation de l'organe conducteur de chaleur, un joint isolant peut être réalisé entre l'organe conducteur de chaleur et la garniture de protection thermique et/ou entre la paroi et ladite garniture de protection thermique.To improve the insulation of the heat conducting member, an insulating joint may be provided between the heat conducting member and the thermal protection lining and / or between the wall and said thermal protection lining.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description suivante d'une de ses formes de réalisation, donnée à titre d'exemple non limitatif, en regard des dessins joints, dans lesquels :

  • la figure 1 est une vue en coupe d'un schéma montrant une garniture de protection thermique assemblée sur un tuyau conducteur de chaleur ;
  • la figure 2 est une vue en perspective de la garniture en place sur le tuyau ; et
  • la figure 3 est une vue en perspective de la garniture de protection thermique avant son assemblage sur l'organe conducteur de chaleur.
Other characteristics and advantages of the invention will become apparent during the following description of one of its embodiments, given by way of non-limiting example, with reference to the accompanying drawings, in which:
  • the figure 1 is a sectional view of a diagram showing a thermal protection lining assembled on a heat conducting pipe;
  • the figure 2 is a perspective view of the gasket in place on the pipe; and
  • the figure 3 is a perspective view of the thermal protection liner prior to assembly on the heat conducting member.

Sur les différentes figures, les mêmes références désignent des éléments identiques ou similaires.In the different figures, the same references designate identical or similar elements.

Lors d'une élévation anormale de température dans un premier espace 3, le rôle de la protection thermique proposée ici est de limiter, ou de retarder, la propagation de l'élévation de température dans un espace 4 contigu séparé par une paroi 2, alors même qu'un ou plusieurs organes conducteurs de chaleur 1, par exemple des tuyaux métalliques, traversent cette paroi 2.During an abnormal rise in temperature in a first space 3, the role of the thermal protection proposed here is to limit, or to delay, the propagation of the temperature rise in an adjacent space 4 separated by a wall 2, while even one or more heat-conducting members 1, for example metal pipes, pass through this wall 2.

Conformément à l'invention, une garniture de protection thermique 5 est assemblée sur chacun des organes conducteurs de chaleur 1, afin d'isoler et d'absorber une partie de la chaleur provenant de cet organe 1.According to the invention, a thermal protection lining 5 is assembled on each of the heat-conducting members 1, in order to isolate and absorb part of the heat coming from this member 1.

L'organe conducteur de chaleur 1 est, dans l'exemple non limitatif illustré sur les figures 1 et 2, un tuyau métallique de section annulaire.The heat conducting member 1 is, in the nonlimiting example illustrated on the figures 1 and 2 , a metal pipe of annular section.

La figure 1 présente la garniture 5 assemblée sur une portion de l'organe conducteur de chaleur 1 reliant les espaces 3 et 4. La garniture 5 est en contact avec la paroi 2. La paroi 2 peut être une cloison, un plancher, un plafond ou toute autre paroi séparant deux espaces distincts.The figure 1 the lining 5 is assembled on a portion of the heat conducting member 1 connecting the spaces 3 and 4. The lining 5 is in contact with the wall 2. The wall 2 can be a partition, a floor, a ceiling or any other wall separating two distinct spaces.

La garniture 5, représentée en perspective sur la figure 3 avant son assemblage sur une portion du tuyau 1, comprend une première face 6, une deuxième face 7 et un isolant thermique 8. La garniture 5 a, dans cet exemple, une forme générale de parallélépipède. Cette forme sensiblement plane avant assemblage lui permet d'être aisément stockée à plat.The liner 5, shown in perspective on the figure 3 before its assembly on a portion of the pipe 1, comprises a first face 6, a second face 7 and a thermal insulator 8. The liner 5 has, in this example, a generally parallelepiped shape. This substantially flat shape before assembly allows it to be easily stored flat.

La première face 6 est souple et perméable. Elle peut être avantageusement composée de tissu et plus particulièrement de tissu alvéolé. Elle présente une surface S1 de forme générale, par exemple, sensiblement rectangulaire.The first face 6 is flexible and permeable. It may advantageously be composed of fabric and more particularly of honeycomb fabric. She has a surface S1 of general shape, for example, substantially rectangular.

La deuxième face 7 est souple et imperméable et est, par exemple composée d'une toile enduite. Elle présente une surface S2 plus grande que S1 et de forme générale rectangulaire. Les première et deuxième faces 6 et 7 sont situées à l'opposé l'une de l'autre.The second face 7 is flexible and impervious and is, for example composed of a coated fabric. It has a surface S2 larger than S1 and generally rectangular shape. The first and second faces 6 and 7 are located opposite each other.

L'isolant thermique 8 se situe entre les première et deuxième faces 6 et 7. Il est adapté pour permettre une bonne isolation thermique en réduisant les fuites radiales de chaleur à partir du tuyau 1. L'isolant 8 est, par exemple, composé de laine minérale, d'ouate de cellulose ou en tout autre matériau ayant une faible conductivité thermique. Il présente, par exemple, une forme générale de parallélépipède rectangle d'épaisseur e.The thermal insulation 8 is located between the first and second faces 6 and 7. It is adapted to allow good thermal insulation by reducing the radial heat leaks from the pipe 1. The insulation 8 is, for example, composed of mineral wool, cellulose wadding or any other material with low thermal conductivity. It has, for example, a general shape of parallelepiped rectangle of thickness e.

La première face 6 et la deuxième face 7 de la garniture 5 sont solidarisées l'une de l'autre, par exemple par couture d'au moins une partie des bords de la première face 6 sur la deuxième face 7 ou inversement. Alternativement, au moins l'un des bords 6' et 7' des première et deuxième faces 6 et 7 est libre. Les première et deuxième faces 6 et 7 forment ainsi une poche 9 dans laquelle l'isolant 8 est glissé. En outre, la surface S2 comprend une portion souple qui ne fait pas face à la surface S1 et qui se replie pour former un rabat 10. Le rabat 10 est adapté pour améliorer le maintien de la garniture 5 autour du tuyau 1.The first face 6 and the second face 7 of the liner 5 are secured to one another, for example by sewing at least a portion of the edges of the first face 6 on the second face 7 or vice versa. Alternatively, at least one of the edges 6 'and 7' of the first and second faces 6 and 7 is free. The first and second faces 6 and 7 thus form a pocket 9 in which the insulator 8 is slid. In addition, the surface S2 comprises a flexible portion that does not face the surface S1 and that folds to form a flap 10. The flap 10 is adapted to improve the maintenance of the lining 5 around the pipe 1.

Dans l'exemple présenté, la surface S2 se décompose entre une première portion S2' et une deuxième portion S2". La première portion S2' forme, avec la surface S1, la poche 9 logeant l'isolant 8. La deuxième portion S2" forme le rabat 10.In the example presented, the surface S2 is decomposed between a first portion S2 'and a second portion S2 "The first portion S2' forms, with the surface S1, the pocket 9 housing the insulator 8. The second portion S2" form the flap 10.

Après insertion de l'isolant 8 dans la poche 9, l'isolant 8 est recouvert sur une première face 11 et sur un premier chant 12 par la première face 6 perméable. La face 11 et le chant 12 sont destinés à être orientés vers l'intérieur, c'est-à-dire respectivement vers le tuyau 1 et vers la paroi 2. En outre, l'isolant 8 est recouvert sur une deuxième face 13 et sur un deuxième chant 14 par la deuxième face 7 imperméable, la face 13 et le chant 14 étant destinés à être orientés vers l'extérieur.After insertion of the insulator 8 in the pocket 9, the insulator 8 is covered on a first face 11 and on a first edge 12 by the first permeable face 6. The face 11 and the edge 12 are intended to be oriented towards the inside, that is to say respectively towards the pipe 1 and towards the wall 2. In addition, the insulator 8 is covered on a second face 13 and on a second song 14 by the second waterproof face 7, the face 13 and the song 14 being intended to be outward facing.

La garniture 5 peut être préfabriquée à l'avance en usine et être adaptée aux dimensions du tuyau à équiper 1.The packing 5 can be prefabricated in advance at the factory and be adapted to the dimensions of the pipe to be fitted 1.

La garniture 5 est solidarisée à la paroi 2 et à une portion du tuyau 1 par collage.The lining 5 is secured to the wall 2 and to a portion of the pipe 1 by gluing.

Le collage est réalisé à l'aide d'une colle comprenant des éléments actifs capables de libérer de l'eau lors d'une élévation de température. Il en résulte un processus endothermique lorsque la température s'élève. A la température ambiante, l'eau demeure liée par les éléments actifs de la colle. Sous l'action d'une élévation de température, l'eau est libérée, à environ 80 °C, par exemple. La température atteignant 100 °C, l'eau libérée est vaporisée, absorbant ainsi une partie de la chaleur provenant de l'espace 3.The bonding is performed using an adhesive comprising active elements capable of releasing water during a rise in temperature. This results in an endothermic process when the temperature rises. At room temperature, the water remains bound by the active elements of the glue. Under the action of a rise in temperature, the water is released at about 80 ° C, for example. As the temperature reaches 100 ° C, the released water is vaporized, absorbing part of the heat from space 3.

Une colle réfractaire du genre décrit dans le brevet français n° 2 701 850 convient bien à cette application, sans que ceci soit limitatif.A refractory glue of the kind described in French Patent No. 2,701,850 is well suited to this application, without this being limiting.

Pour réaliser l'assemblage de la garniture 5 sur une partie du tuyau 1, l'opérateur étale, de préférence uniformément, de la colle sur l'ensemble de la première face 6. La composition de la première face 6, en tissu alvéolé, permet un encollage uniforme et facile à l'aide, par exemple, d'une spatule ou d'une brosse. En outre, la première face 6 permet de poser la colle sans endommager l'isolant 8 et permet à la colle de migrer dans l'isolant 8.To achieve the assembly of the lining 5 on a portion of the pipe 1, the operator spreads, preferably uniformly, glue on the whole of the first face 6. The composition of the first face 6, honeycomb fabric, allows a uniform and easy gluing using, for example, a spatula or a brush. In addition, the first face 6 makes it possible to apply the glue without damaging the insulation 8 and allows the glue to migrate into the insulation 8.

Il est également possible d'encoller la portion du tuyau 1 destinée à être couverte par la garniture 5.It is also possible to glue the portion of the pipe 1 intended to be covered by the liner 5.

Après encollage, l'opérateur enroule la garniture 5 en appliquant la première face 6 sur le tuyau 1.After gluing, the operator winds the liner 5 by applying the first face 6 on the pipe 1.

La première face 6, perméable, est orientée vers l'intérieur de façon à permettre les échanges de chaleur entre le tuyau 1 et la garniture 5. La deuxième face 7, imperméable, est orientée vers l'extérieur de façon à assurer une bonne isolation du tuyau 1. L'imperméabilité de la deuxième face 7 permet en outre d'empêcher que l'eau libérée par la colle en cas d'élévation anormale de la température s'échappe avant d'avoir été vaporisée.The first face 6, permeable, is oriented inward so as to allow heat exchange between the pipe 1 and the liner 5. The second face 7, impermeable, is oriented outwardly so as to ensure good insulation The impermeability of the second face 7 also makes it possible to prevent the water released by the glue in the event of abnormal elevation of the temperature escapes before being sprayed.

Une fois que la garniture 5 a été assemblée, l'opérateur ferme la garniture 5 autour du tuyau 1 en solidarisant le rabat 10 sur la garniture 5. Le rabat 10 est, par exemple, collé sur la deuxième face 7 avec une colle souple telle qu'une colle mastic à base de résine silicone. Le rabat 10 permet en outre de fermer la garniture 5 sans générer de déchets ou de poussières supplémentaires.Once the lining 5 has been assembled, the operator closes the lining 5 around the pipe 1 by joining the flap 10 to the lining 5. The flap 10 is, for example, glued to the second face 7 with a flexible glue such as as a putty adhesive based on silicone resin. The flap 10 further allows to close the liner 5 without generating additional waste or dust.

Avantageusement, l'opérateur réalise un premier joint étanche (non représenté) entre le tuyau 1 et la garniture 5 et un deuxième joint étanche 15 entre la paroi 2 et la garniture 5 de façon à améliorer l'isolation.Advantageously, the operator makes a first seal (not shown) between the pipe 1 and the gasket 5 and a second seal 15 between the wall 2 and the gasket 5 so as to improve the insulation.

L'enchainement des étapes du procédé de pose de la garniture 5 décrites ci-avant permet d'obtenir un temps de pose réduit, par exemple de quatre à sept minutes et préférentiellement un temps de pause de cinq minutes.The sequence of steps of the method of laying the packing 5 described above allows to obtain a reduced exposure time, for example from four to seven minutes and preferably a break time of five minutes.

Les modes de réalisation décrits ci-dessus sont des illustrations de la présente invention. Diverses modifications peuvent leur être apportées sans sortir du cadre de l'invention qui ressort des revendications annexées. En particulier, le procédé est applicable des organes conducteur de chaleur autres que des tuyaux.The embodiments described above are illustrations of the present invention. Various modifications can be made without departing from the scope of the invention which emerges from the appended claims. In particular, the method is applicable to heat conducting members other than pipes.

Claims (10)

  1. Method for installing a thermal protection lining on a heat conducting member (1) passing through a wall (2) that separates two contiguous spaces, the method comprising:
    - receiving the thermal protection lining (5) comprising a first face (6) permeable to liquid water, a second face (7) impermeable to liquid water opposite the first face and a thermal insulator (8) between the first and second faces;
    - assembling the thermal protection lining on the heat conducting member against the wall of the side of one of the two contiguous spaces, in such a way that the thermal protection lining surrounds only a portion of the heat conducting member, said portion being in contact with the wall, with the first face in contact with the heat conducting member, the assembly being carried out with an adhesive comprising active elements that can release water when the temperature rises, said adhesive being applied between the first permeable face of the thermal protection lining and the heat conducting member.
  2. Method according to claim 1 wherein the first and second faces (6, 7) of the thermal protection lining (5) form a pocket (9), and wherein the thermal insulator (8) is housed in said pocket.
  3. Method according to claim 2 wherein the second face (7) comprises a first portion (S2') forming a pocket (9) with the first face (6) and a second portion (S2") forming a flap (10).
  4. Method according to claim 3, further comprising, during the step of assembly:
    - gluing the flap (10) onto a portion of the first portion (S2') of the second face (7).
  5. Method according to any of claims 2 to 4, wherein the thermal protection lining before assembly has a substantially flat shape.
  6. Method as claimed in any preceding claim, further comprising, during the step of assembly:
    - applying at least a portion of said adhesive over the entire first permeable face (6) of the thermal protection lining (5).
  7. Method as claimed in any preceding claim, further comprising, during the step of assembly:
    - applying at least a portion of said adhesive onto a portion of the heat conducting member (1).
  8. Method as claimed in any preceding claim wherein the first face (6) comprises honeycomb fabric.
  9. Method as claimed in any preceding claim, further comprising:
    - carrying out a thermally insulating seal (15) between the heat conducting member (1) and the thermal protection lining (5);
    - and/or between the wall (2) and the thermal protection lining.
  10. Method as claimed in any preceding claim, wherein a portion of said adhesive is contained in the insulator (8).
EP14186710.1A 2013-10-25 2014-09-26 Method for installing a thermal protection liner Active EP2865933B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1360445A FR3010480B1 (en) 2013-05-22 2013-10-25 METHOD FOR INSTALLING A THERMAL PROTECTIVE TRIM

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EP2865933A1 EP2865933A1 (en) 2015-04-29
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3368809T3 (en) * 2015-10-29 2021-08-16 Favuseal As FIRE PROTECTION FOR PIPES
NL1041587B1 (en) * 2015-11-23 2017-06-30 Beele Eng Bv A layer of mineral wool provided with a sprayed-on protective layer.
AU2018352297B2 (en) * 2017-10-16 2022-09-15 Promat Australia Pty Ltd Fire stop system and method of constructing such system
CN110176742B (en) * 2019-06-04 2021-02-12 苏州市皓月管业有限公司 Plastic cable poling that radiating effect is good

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Publication number Priority date Publication date Assignee Title
US5079292A (en) 1988-08-31 1992-01-07 Liquid System Technologies, Inc. Curable silicone compositions and non-flammable cured products obtained therefrom
FR2701850B1 (en) 1993-02-26 1995-05-19 Mecatiss Flexible device with fire protection properties.
US6886783B2 (en) 2003-02-20 2005-05-03 The Boeing Company Quick install insulation
JP4771127B2 (en) * 2005-11-04 2011-09-14 株式会社杉山元医理器 Insulated container
JP5236888B2 (en) * 2007-03-29 2013-07-17 因幡電機産業株式会社 Band-shaped refractory material for blocking through-holes
GB2495234B (en) * 2008-08-27 2013-06-19 Geofabrics Ltd Composite material for use as a liner
FR2973252B1 (en) * 2011-04-01 2013-11-01 Soletanche Freyssinet FIRE PROTECTON COATING AND METHOD OF APPLICATION
EP2554885A3 (en) 2011-08-03 2017-09-06 HILTI Aktiengesellschaft Passive fire alarm system for conduits and associated method

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